We take 3 of steel in column.
Rcc roof slab steel calculation.
Count the number.
Number of main bars ly spacing 1 4000 150 1 27 nos.
Numecal for rcc roof slab steel calculation.
Height h 3 m.
Let the shorter span has provided the main rod and longer span has provided distribution rod.
Unit weight steel 7850 kg m 3.
One way slab bar bending schedule calculation.
Weight of steel 0 0081 x 7850.
Q the length and breadth of slab is 10 meter and 7 meter respectively.
Let the shorter span has provided the main rod and longer span has provided distribution rod.
Beside this the slab has following information for main bars length of on rod 7 meter diameter 12 mm.
Thickness of slab 150 mm.
Numecal for rcc roof slab steel calculation q the length and breadth of slab is 10 meter and 7 meter respectively.
List down all the shapes of bars from the drawing.
So volume of steel 3 100 x 0 27.
Number of required bars formula length of slab spacing 1.
Lateral dimension 0 3m x0 3 m.
To get a rough idea for the construction cost you can get a hint from this formula however in general it is assumed that to construct an rcc roof slab the approx cost would be rs 180 to 200 00 per sq ft where the cost for steel labor shuttering and material is included.
Let us take an example of a slab.
Prepare a bar bending schedule in order to classify different shapes of bars bent up bar straight anchor bar eos bar curtail bar etc and diameters.